Question

8 The human pulse and the swing of a pendulum are possible time units.
Why are they not often used?​

Answer 1

Answer:

Well, the swing of a pendulum has been used in many, many clock over the centuries. A human pulse isn’t a good standard, because it varies from moment to moment, but we do have that phrase “pause a beat” which makes reference to something like that length of time. Although that could also be drawn from music theory.

Explanation:

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Answer 2

Answer:

Explanation:

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